102101011001021 has 8 divisors (see below), whose sum is σ = 102536831327040. Its totient is φ = 101665551308512.

The previous prime is 102101011000999. The next prime is 102101011001053. The reversal of 102101011001021 is 120100110101201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102101011001021 is a prime.

It is a super-2 number, since 2×102101011001021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102101011000993 and 102101011001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101011001221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89590931 + ... + 90723408.

It is an arithmetic number, because the mean of its divisors is an integer number (12817103915880).

Almost surely, 2^{102101011001021} is an apocalyptic number.

It is an amenable number.

102101011001021 is a deficient number, since it is larger than the sum of its proper divisors (435820326019).

102101011001021 is a wasteful number, since it uses less digits than its factorization.

102101011001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180316755.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102101011001021 its reverse (120100110101201), we get a palindrome (222201121102222).

The spelling of 102101011001021 in words is "one hundred two trillion, one hundred one billion, eleven million, one thousand, twenty-one".